Lens detection equipment

Abstract

The utility model belongs to the technical field of lens detection, and discloses lens detection equipment, which comprises a bearing seat, a light source assembly, a mounting strip and a detection assembly, and is characterized in that the bearing seat is used for bearing a to-be-detected lens; the light source assembly is arranged at the bottom of the bearing seat; the mounting strip is arranged at the top of the bearing seat, an arc-shaped groove is formed in the mounting strip, and the arc center of the arc-shaped groove and the bearing seat are located on the same side of the mounting strip; the detection assembly comprises a sliding strip, a locking piece and a first detection camera, the sliding strip is slidably arranged in the arc-shaped groove, the locking piece penetrates through the sliding strip and the arc-shaped groove, the locking piece is used for fixing the sliding strip to the mounting strip, the first detection camera is fixed to the sliding strip, and the first detection camera faces the to-be-detected lens. The arc-shaped groove is formed in the mounting strip, the sliding strip is guided through the arc-shaped groove, and the detection angle of the detection assembly can be conveniently adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to lens detection technical field especially relates to lens detection equipment. BACKGROUND

[0002] Lens MTF (Modulation Transfer Function) equipment is used for detecting the imaging definition of lens. In the required lens MTF equipment, the lens to be measured is fixed on a bearing seat, a detection camera is fixed on a mounting frame and faces the lens to be measured, and the mounting position of the detection camera is inconvenient to adjust, and the detection angle cannot be quickly switched. UTILITY MODEL CONTENTS

[0003] The utility model discloses a lens detection equipment, set up the arc groove on the mounting strip, utilize the arc groove to guide the slide bar, and the detection angle of detection component is conveniently adjusted.

[0004] To achieve this purpose, the utility model adopts the following technical scheme:

[0005] The lens detection equipment comprises:

[0006] A bearing seat is used for bearing a lens to be measured;

[0007] A light source component is arranged at the bottom of the bearing seat;

[0008] A mounting strip is arranged at the top of the bearing seat, the mounting strip is provided with an arc groove, and the arc center of the arc groove and the bearing seat are located on the same side of the mounting strip;

[0009] A detection component comprises a slide bar, a locking piece and a first detection camera, the slide bar is slidably arranged in the arc groove, the locking piece is arranged in the slide bar and the arc groove, the locking piece is used for fixing the slide bar to the mounting strip, the first detection camera is fixed to the slide bar, and the first detection camera faces the lens to be measured.

[0010] As an optional technical scheme, the surface of the mounting strip is provided with a scale line and / or an angle mark.

[0011] As an optional technical scheme, the lens detection equipment further comprises:

[0012] A driving component;

[0013] A lifting component is connected to the output end of the driving component, the lifting component comprises a circular ring disc, a fixed plate and a fixed rod, the two ends of the fixed rod are connected to the circular ring disc and the fixed plate respectively, the bottom end of the mounting strip is connected to the circular ring disc, the top end of the mounting strip is connected to the fixed plate, and the driving component is used for driving the lifting component to ascend and descend along the vertical direction.

[0014] As an optional technical scheme, the lens detection device further comprises a support assembly, the support assembly comprises a support column, the support column is sleeved with a first linear bearing and a second linear bearing, the circular disc is fixed to the first linear bearing, and the fixed plate is fixed to the second linear bearing.

[0015] As an optional technical scheme, the support assembly further comprises a first support plate and a second support plate, the first support plate is fixed to the top of the support column, the second support plate is fixed to the middle of the support column, the lens detection device further comprises two groups of transmission assemblies, the transmission assembly comprises a lead screw and a nut, two ends of the lead screw are rotationally connected to the first support plate and the second support plate respectively, the nut is rotationally sleeved on the circumferential portion of the lead screw and is fixed to the fixed plate, the two lead screws are fixedly sleeved with first pulleys, a belt is wound between the two first pulleys, and the belt is in transmission connection with the output end of the driving assembly.

[0016] As an optional technical scheme, the first support plate and the fixed plate are provided with a first anti-collision block, and / or the second support plate and the fixed plate are provided with a second anti-collision block.

[0017] As an optional technical scheme, the driving assembly comprises a rotating disc and a rocker, the rocker is installed on the rotating disc, the rotating disc is rotationally installed on the first support plate along a vertical line, the rotating disc is provided with a second pulley, and the belt passes through the second pulley.

[0018] As an optional technical scheme, the first support plate is rotationally provided with two tension pulleys, the two tension pulleys are located on the two sides of the second pulley respectively, and the belt passes through one of the tension pulleys, the second pulley and the other tension pulley in sequence.

[0019] As an optional technical scheme, the fixed plate is provided with a second detection camera, the second detection camera is located directly above the bearing seat, and the second detection camera vertically faces the lens to be detected.

[0020] As an optional technical scheme, the lens detection device comprises an XY linear module, the bearing seat is installed on the output end of the XY linear module, the top of the support assembly is provided with a collimator, and the collimator is located directly above the second detection camera.

[0021] The beneficial effects of the utility model are as follows:

[0022] The lens detection equipment provided by the utility model includes a bearing seat, a light source assembly, a mounting strip and a detection assembly, the bearing seat is used for bearing a lens to be detected; the light source assembly is arranged at the bottom of the bearing seat; the mounting strip is arranged at the top of the bearing seat, the mounting strip is provided with an arc-shaped groove, the arc center of the arc-shaped groove and the bearing seat are located on the same side of the mounting strip; the detection assembly includes a sliding strip, a locking piece and a first detection camera, the sliding strip is slidingly arranged in the arc-shaped groove, the locking piece is arranged through the sliding strip and the arc-shaped groove, the locking piece is used for fixing the sliding strip to the mounting strip, the first detection camera is fixed to the sliding strip, and the first detection camera faces the lens to be detected.

[0023] The first detection camera is installed at a first preset position of the mounting strip, the light source assembly shoots light rays to the lens to be detected, the light rays are refracted in multiple directions after entering the lens to be detected, part of the refracted light rays is coaxial with the central axis of the first detection camera, the first detection camera acquires the part of the light rays, and the imaging definition of the part of the light rays is judged; when it is necessary to adjust the detection angle of the first detection camera, the locking piece is loosened, the sliding strip in the arc-shaped groove is pushed, the arc-shaped groove guides the sliding strip, the sliding strip is quickly moved to a second preset position along the extension track of the arc-shaped groove, and then the locking piece is used for fixing the sliding strip to the mounting strip, and the first detection camera receives another part of the refracted light rays at the second preset position. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic view of a first visual angle of the lens detection equipment of the utility model;

[0025] Figure 2 It is a structural schematic view of a second visual angle of the lens detection equipment of the utility model;

[0026] Figure 3 It is a structural schematic view of a third visual angle of the lens detection equipment of the utility model;

[0027] Figure 4 It is Figure 3 A local enlarged view of position A in the figure.

[0028] In the figure:

[0029] 100, a lens to be detected;

[0030] 1, a bearing seat;

[0031] 2, a light source assembly;

[0032] 3, a mounting strip; 31, an arc-shaped groove; 32, an arc-shaped section; 33, a straight section;

[0033] 4, a detection assembly; 41, a sliding strip; 411, a scale groove; 42, a first detection camera; 43, a first mounting plate; 44, a second mounting plate;

[0034] 5, drive assembly; 51, rotary disc; 52, rocker; 53, second pulley;

[0035] 6, lifting assembly; 61, circular ring disc; 62, fixed plate; 63, fixed rod;

[0036] 7, support assembly; 71, support column; 72, first linear bearing; 73, second linear bearing; 74, first support plate; 75, second support plate;

[0037] 8, transmission assembly; 81, screw rod; 82, nut; 83, first anti-collision block; 84, second anti-collision block;

[0038] 9, first pulley;

[0039] 10, belt;

[0040] 11, tension pulley;

[0041] 12, second detection camera;

[0042] 13, XY linear module;

[0043] 14, collimator. DETAILED DESCRIPTION

[0044] The utility model will be described in further detail below in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0045] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0046] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature is on, above and on of second feature includes that first feature is directly above and obliquely above of second feature, or only indicates that horizontal height of first feature is higher than second feature. First feature is under, below and under of second feature includes that first feature is directly below and obliquely below of second feature, or only indicates that horizontal height of first feature is less than second feature.

[0047] In the description of the embodiment, the terms "upper", "lower", "right", "left", "horizontal", "vertical", and "radial" refer to the orientation or position shown in the drawings, which are for convenience and simplification of description and operation only, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the utility model. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0048] As shown in Figures 1 to 4 The utility model provides a lens detection equipment, lens detection equipment includes bearing seat 1, light source subassembly 2, installation strip 3 and detection subassembly 4, bearing seat 1 is used to bear the lens 100 of measurement, light source subassembly 2 sets up at the bottom of bearing seat 1, installation strip 3 sets up at the top of bearing seat 1, installation strip 3 is equipped with arc slot 31, and the arc center of arc slot 31 and bearing seat 1 are all located the same side of installation strip 3, detection subassembly 4 includes slide strip 41, locking piece and first detection camera 42, slide strip 41 slidingly sets up in arc slot 31, locking piece is threaded in slide strip 41 and arc slot 31, locking piece is used for fixing slide strip 41 in installation strip 3, first detection camera 42 is fixed in slide strip 41, and first detection camera 42 is towards the lens 100 of measurement.

[0049] Specifically, first detection camera 42 is installed at the first preset position of installation strip 3, light source subassembly 2 shoots into the light of lens 100 of measurement, and the light is refracted in multiple directions after entering lens 100 of measurement, wherein a part of refracted light is coaxial with the central axis of first detection camera 42, first detection camera 42 acquires this part of light, judges the imaging definition of this part of light, when needing to adjust the detection angle of first detection camera 42, loosens locking piece, pushes slide strip 41 in arc slot 31, and arc slot 31 guides slide strip 41, and slide strip 41 is quickly moved to the second preset position along the extension track of arc slot 31, then adopts locking piece to fix slide strip 41 in installation strip 3, and first detection camera 42 receives another part of refracted light at the second preset position.

[0050] In the embodiment, the locking member includes a bolt and a nut. When the sliding bar 41 needs to be locked, the bolt is screwed with the nut after passing through the through hole and the arc-shaped slot 31 of the sliding bar 41, so that the sliding bar 41 is prevented from continuing to slide in the arc-shaped slot 31. The locking member is a prior art component, and the specific structure is not shown.

[0051] In the embodiment, eight installation bars 3 are arranged at equal intervals around the periphery of the bearing seat 1, and each installation bar 3 is provided with a set of detection assemblies 4. The eight sets of detection assemblies 4 can simultaneously detect the to-be-tested lens 100. In other embodiments, the number of installation bars 3 can be set according to actual needs, for example, four or six or ten.

[0052] Optionally, the light source assembly 2 includes a light source member and a reticle. The reticle is provided with a cross-shaped slot, and the light emitted by the light source member passes through the reticle and enters the to-be-tested lens 100.

[0053] Optionally, the surface of the installation bar 3 is provided with scale lines and / or angle marks.

[0054] In the embodiment, the surface of the installation bar 3 is provided with scale lines and angle marks, which are used to mark the specific position of the sliding bar 41 in the arc-shaped slot 31. For example, eleven angle marks of 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, and 70° are marked on the installation bar 3. Five scale lines are arranged between adjacent two angle marks, and the difference between adjacent two scale lines is 1°. In other embodiments, the number and specific values of the angle marks can be set according to actual needs, and the number of scale lines between adjacent two angle marks can also be set according to actual needs.

[0055] Optionally, the detection assembly 4 includes a first mounting plate 43 and a second mounting plate 44. The first mounting plate 43 is fixedly connected with the sliding bar 41, and is provided with a plurality of connecting holes arranged at intervals away from the arc center of the arc-shaped slot 31. The second mounting plate 44 is provided with a connecting slot extending away from the arc center of the arc-shaped slot 31. A bolt passes through the connecting slot and then passes through the connecting hole, so as to fixedly connect the first mounting plate 43 and the second mounting plate 44. The first detection camera 42 is fixedly installed on the second mounting plate 44, and the distance from the second mounting plate 44 and the second detection camera 12 to the arc center of the arc-shaped slot 31 is adjustable.

[0056] Optionally, the sliding bar 41 is provided with a scale slot 411. The sliding bar 41 has a certain length. In order to further accurately show the specific position of the sliding bar 41, the scale slot 411 is arranged on the sliding bar 41 in the embodiment. When the scale slot 411 is aligned with a scale line, it indicates that the sliding bar 41 has moved to the angle position corresponding to the scale line.

[0057] Optionally, the lens detection device further comprises a driving assembly 5 and a lifting assembly 6, the lifting assembly 6 is connected to an output end of the driving assembly 5, the lifting assembly 6 comprises a circular disc 61, a fixed plate 62 and a fixed rod 63, two ends of the fixed rod 63 are connected to the circular disc 61 and the fixed plate 62 respectively, the bottom end of the mounting strip 3 is connected to the circular disc 61, and the top end of the mounting strip 3 is connected to the fixed plate 62, and the driving assembly 5 is used to drive the lifting assembly 6 to ascend and descend along the vertical direction.

[0058] The interval distance between the circular disc 61 and the fixed plate 62 is fixed, the circular disc 61 and the fixed plate 62 are used to position the mounting strip 3 together, so as to prevent the mounting strip 3 from shaking during the detection process.

[0059] When it is needed to detect lenses 100 of different specifications, the driving assembly 5 drives the lifting assembly 6 to ascend and descend along the vertical direction, the lifting assembly 6 drives the mounting strip 3 and the detection assembly 4, so as to ensure that the first detection camera 42 can be aligned with the lens 100 to be detected, and when it is needed to detect the lens 100 to be detected at different heights, the driving assembly 5 can also drive the lifting assembly 6 to ascend and descend along the vertical direction.

[0060] In the embodiment, the mounting strip 3 comprises an arc-shaped section 32 and a straight section 33, the arc-shaped groove 31 is arranged in the arc-shaped section 32, the arc-shaped section 32 is connected to the circular disc 61, and the straight section 33 is connected to the fixed plate 62.

[0061] In the embodiment, when the detection assembly 4 moves to one end of the arc-shaped section 32 closest to the straight section 33, the included angle between the central axis of the first detection camera 42 and the vertical line is 20°, and when the detection assembly 4 moves to one end of the arc-shaped section 32 farthest from the straight section 33, the included angle between the central axis of the first detection camera 42 and the vertical line is 70°.

[0062] Optionally, the lens detection device further comprises a supporting assembly 7, the supporting assembly 7 comprises a supporting column 71, the supporting column 71 is sleeved with a first linear bearing 72 and a second linear bearing 73, the circular disc 61 is fixed to the first linear bearing 72, and the fixed plate 62 is fixed to the second linear bearing 73. The first linear bearing 72 and the second linear bearing 73 play a guiding role, so as to prevent the circular disc 61 and the fixed plate 62 from deflecting.

[0063] Optionally, the support assembly 7 further comprises a first support plate 74 and a second support plate 75, the first support plate 74 is fixed to the top of the support column 71, and the second support plate 75 is fixed to the middle of the support column 71, and the lens detection device further comprises two sets of transmission assemblies 8, each of the transmission assemblies 8 comprises a screw rod 81 and a nut 82, both ends of the screw rod 81 are rotatably connected to the first support plate 74 and the second support plate 75 respectively, and the nut 82 is rotatably sleeved on the circumferential portion of the screw rod 81 and is fixed to the fixed plate 62, and both screw rods 81 are fixedly sleeved with a first pulley 9, and the belt 10 is wound between the two first pulleys 9, and the belt 10 is in transmission connection with the output end of the driving assembly 5.

[0064] The belt 10, the first pulley 9, the screw rod 81 and the nut 82 sequentially transmit power, and finally the nut 82 drives the fixed plate 62 to ascend and descend along the vertical direction, so as to drive the mounting strip 3 and the detection assembly 4 to ascend and descend along the vertical direction.

[0065] Optionally, the first support plate 74 and the fixed plate 62 are provided with a first anti-collision block 83, and / or the second support plate 75 and the fixed plate 62 are provided with a second anti-collision block 84. When the fixed plate 62 ascends along the vertical direction, the first anti-collision block 83 can prevent the fixed plate 62 from colliding with the first support plate 74, and when the fixed plate 62 descends along the vertical direction, the second anti-collision block 84 can prevent the fixed plate 62 from colliding with the second support plate 75.

[0066] In the embodiment, the driving assembly 5 comprises a rotating disc 51 and a rocker 52, the rocker 52 is installed on the rotating disc 51, the rotating disc 51 is rotatably installed on the first support plate 74 along a vertical line, the rotating disc 51 is provided with a second pulley 53, and the belt 10 is wound around the second pulley 53. The driving assembly 5 of the embodiment is manually driven, and the operator rotates the rotating disc 51 through the rocker 52, and the rotating disc 51 drives the belt 10 through the second pulley 53. The lifting assembly 6 is driven to ascend and descend along the vertical direction in the manner of manual operation, so that the detection assembly 4 can be stopped at any predetermined position.

[0067] In other embodiments, the driving assembly 5 is a pneumatic cylinder assembly, the output end of the pneumatic cylinder assembly is connected with the lifting assembly 6, and the pneumatic cylinder assembly drives the lifting assembly 6 to ascend and descend along the vertical direction, or the driving assembly 5 is an electric motor assembly, and the output end of the electric motor assembly is connected with the belt 10, and the electric motor assembly drives the belt 10 to rotate.

[0068] Optionally, the first support plate 74 is rotatably installed with two tension pulleys 11, the two tension pulleys 11 are respectively located on the two sides of the second pulley 53, and the belt 10 is wound around one of the tension pulleys 11 and the second pulley 53 and then around the other tension pulley 11. The two tension pulleys 11 can tighten the belt 10, so as to ensure the torque transmission efficiency between the second pulley 53 and the belt 10.

[0069] Optionally, the fixed plate 62 is provided with a second detection camera 12, the second detection camera 12 is vertically oriented towards the lens to be detected 100, and is located directly above the bearing seat 1.

[0070] Optionally, the lens detection device comprises an XY linear module 13, the bearing seat 1 is installed on the output end of the XY linear module 13, and the top of the support assembly 7 is provided with a collimator 14, which is located directly above the second detection camera 12.

[0071] The XY linear module 13 is used for adjusting the plane coordinates of the bearing seat 1 and the lens to be detected 100, and the collimator 14 is used for detecting the plane coordinates of the lens to be detected 100.

[0072] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A lens detection apparatus characterized by comprising: The lens detection device comprises a bearing seat (1) for bearing a lens to be detected (100), a light source assembly (2) arranged at the bottom of the bearing seat (1), a mounting strip (3) arranged at the top of the bearing seat (1), wherein the mounting strip (3) is provided with an arc-shaped groove (31), and the arc center of the arc-shaped groove (31) and the bearing seat (1) are located on the same side of the mounting strip (3), a detection assembly (4) comprising a sliding strip (41), a locking piece and a first detection camera (42), wherein the sliding strip (41) is slidingly arranged in the arc-shaped groove (31), the locking piece is arranged through the sliding strip (41) and the arc-shaped groove (31), the locking piece is used for fixing the sliding strip (41) to the mounting strip (3), and the first detection camera (42) is fixed to the sliding strip (41) and faces the lens to be detected (100), a driving assembly (5), a lifting assembly (6) connected to the output end of the driving assembly (5), wherein the lifting assembly (6) comprises a circular disc (61), a fixed plate (62) and a fixed rod (63), the two ends of the fixed rod (63) are connected to the circular disc (61) and the fixed plate (62) respectively, the bottom end of the mounting strip (3) is connected to the circular disc (61), the top end of the mounting strip (3) is connected to the fixed plate (62), and the driving assembly (5) is used for driving the lifting assembly (6) to ascend and descend along the vertical direction. The surface of the mounting strip (3) is provided with scale lines and / or angle marks. The lens detection device further comprises a supporting assembly (7), wherein the supporting assembly (7) comprises a supporting column (71), the supporting column (71) is sleeved with a first linear bearing (72) and a second linear bearing (73), the circular disc (61) is fixed to the first linear bearing (72), and the fixed plate (62) is fixed to the second linear bearing (73). The supporting assembly (7) further comprises a first supporting plate (74) and a second supporting plate (75), the first supporting plate (74) is fixed to the top of the supporting column (71), the second supporting plate (75) is fixed to the middle of the supporting column (71), and the lens detection device further comprises two groups of transmission assemblies (8), wherein each transmission assembly (8) comprises a lead screw (81) and a nut (82), the two ends of the lead screw (81) are rotationally connected to the first supporting plate (74) and the second supporting plate (75) respectively, the nut (82) is rotationally sleeved on the peripheral part of the lead screw (81) and is fixed to the fixed plate (62), two first pulleys (9) are fixedly sleeved on the two lead screws (81), a belt (10) is wound between the two first pulleys (9), and the belt (10) is in transmission connection with the output end of the driving assembly (5). First anti-collision blocks (83) are arranged between the first supporting plate (74) and the fixed plate (62), and / or second anti-collision blocks (84) are arranged between the second supporting plate (75) and the fixed plate (62). ​ ​ 2. The lens detecting apparatus according to claim 1, characterized by ​ 3. The lens detection apparatus according to claim 1, characterized by ​ 4. The lens detecting apparatus according to claim 3, characterized by ​ 5. The lens detection apparatus according to claim 4, characterized by ​ 6. The lens detection apparatus according to claim 4, characterized by The driving assembly (5) comprises a rotating disc (51) and a rocker (52), the rocker (52) is installed on the rotating disc (51), the rotating disc (51) is rotatably installed on the first supporting plate (74), the rotating disc (51) is provided with a second pulley (53), and the belt (10) is wound around the second pulley (53).

7. The lens detection apparatus according to claim 6, characterized by The first supporting plate (74) is rotatably provided with two tension pulleys (11), the two tension pulleys (11) are located on the two sides of the second pulley (53) respectively, and the belt (10) is wound around one of the tension pulleys (11), the second pulley (53) and the other tension pulley (11) in sequence.

8. The lens detection apparatus according to claim 3, characterized by The fixed plate (62) is provided with a second detection camera (12), the second detection camera (12) is located directly above the bearing seat (1), and the second detection camera (12) vertically faces the lens (100) to be detected.

9. The lens detection apparatus according to claim 8, characterized by The lens detection equipment comprises an XY linear module (13), the bearing seat (1) is installed on the output end of the XY linear module (13), the top of the supporting assembly (7) is provided with a collimator (14), and the collimator (14) is located directly above the second detection camera (12).

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